Adjustable scaffold and bracket

ABSTRACT

A SCAFFOLD HAVING AN ADJUSTABLE TUBULAR FRAME SUPPORTING A SCAFFOLD BOARD AND HAVING ADJUSTMENT FASTENERS CONNECTED TO THE TUBING FOR ADJUSTING AND MOUNTING A FORM SUPPORT.

Sept. 20, 1971 R. Roe-5R5 ETAL 3,605,944

ADJUSTABLE SCAFFOLD AND BRACKET Filed Dec. 12, 1969 3 Sheets-Sheet l-a4--\ r-Z fi I II IN ENTORS. 00/420 0052s BY WEA/DELL CZEG/IORN W9. mm

Afro/ems Y5- Sept. 20, 1971 ROGERs EIAL ADJUSTABLE SCAFFOLD AND BRACKET3 Sheets-Sheet 2 Filed Dec. 12, 1969 k N \\wml 0 ea A m AW WM wATTOE/VL'YS.

Sept. 20, 1971 ROGERS EI'AL 3,605,944

ADJUSTABLE SCAFFOLD AND BRACKET Filed D90. 12, 1959 3 Sheets-Sheet 3 W52laws: s 5

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INVENTORS. Hal/A R0 P001525 y Win/0m C'LEGHORN mmww.

A rm R/VE Y5 United States Patent Office 3,605,944 Patented Sept. 20,1971 3 605 944 ADJUSTABLE scAFFoLn AND BRACKET Wendell Cleghom, 1231 OldAtlanta Road, Griffin, Ga.

30223, and Richard Rogers, 150 Lake Drive, Fayetteville, Ga. 30214 FiledDec. 12, 1969, Ser. No. 884,600 Int. Cl. E04g 3/08 us. (:1. 182-82 9Claims ABSTRACT OF THE DISCLOSURE A scaffold having an adjustabletubular frame supporting a scaffold board and having adjustmentfasteners connected to the tubing for adjusting and mounting a formsupport.

Large scale scaffolding has heretofore been a complicated and timeconsuming operation. This invention relates to simple, inexpensive, andefficient scaffold frames which significantly facilitate construction orany other type of work being done on the side of a structure.

Accordingly, a primary object of this invention is to provide a scaffoldframe for supporting both a scaffold board and a form support.

Another object of this invention is to provide a scaffold frame whichwill bear heavy loads with case.

A further object of this invention is to provide a scaffold frame whichis horizontally adjustable and which allows horizontal adjustment of theform support.

The above and other objects of the invention will become apparent tothose skilled in the art after a consideration of the following detaileddescription of the preferred embodiments of this invention takentogether with the accompanying drawings in which:

FIG. 1 is a plan view of the scaffold;

FIG. 2 is a sectional view of a scaffold frame taken on lines 2-2 ofFIG. 1;

FIG. 3 is a sectional view of a scaffold frame taken on line 3-3 of FIG.2;

FIG. 4 is a sectional view taken on line 44 of FIG. 2;

FIG. 5 is a sectional view taken on line 5-5 of FIG. 2;

FIG. 6 is a perspective view of a scaffold frame and part of thescaffold board;

FIG. 7 is a cross-sectional view of the scaffold frame tubing taken online 77 of FIG. 6;

FIG. 8 is a cross-sectional view of the form support attachment taken online 88 of FIG. 6;

FIG. 9 is a cross-sectional view of the scaffold frame tubing taken online 99 of FIG. 6;

FIG. 10 is an elevational view of a scaffold frame with variousadjustment brackets for the form support;

FIG. 11 is a sectional view taken on line 11-11 of FIG. 10;

FIG. 12 is a sectional view taken on line 12-12 of FIG. 10;

FIG. 13 is a sectional view taken on line 1313 of FIG. 10;

FIG. 14 is a sectional view taken on line 1414 of FIG. 10; and

FIG. 15 is a sectional view of the seat plate taken on line 15-15 ofFIG. 10.

Referring in detail to the drawings, there is illustrated in FIG. 1 aseries of scaffold frames mounted against a vertical surface 32 of astructure 34 and supporting a scaffold board 36 and a form 38. As shownin FIGS. 2 through 9, scaffold 30 is comprised of a tubular rectangularframe work having a diagonal tube 40 supporting the rectangular frameconsisting of a base tube 42, upright tubes 44 and 46, and upperhorizontal tubes 48 and 50 connected at opposite sides of the upper endsof upright tubes 44 and 46. Scaffold frame 30 is supported by anadjustment rod 52 within base tube 42, adjustment rod 52 being mountedin a seat plate 54 against vertical surface 32. Scaffold 30 may behorizontally positioned about adjustment rod 52 by means of nuts 56, 56.Base tube 42 extends further than upright tube 44 for supportingscaffold board 36 which is secured by means of a vertical fastener 58extending upward at the end of base tube 42.

Extending from the outer sides of upper tubes 48 and 50 are verticalform support fasteners 70 as clearly seen in FIG. 6. An adjustment plate72, welded to the bottoms of upper tubes 48 and 50, has a slottedaperture 74. A form support 76 is mounted on the upper surfaces of uppertubes 48 and 50 between form support fasteners 70. A bolt 78, as clearlyshown in FIG. 8, which is inserted through aperture 74 in order tofasten form support 76, allows horizontal adjustment of form support 76to the extent of the length of slotted aperture 74. Form support 76 ofeach scaffold frame 30 supports form 38 and form boundaries 80 for thepouring of cement. Structure 34 may be any type of beam or concretegirder. An I beam is shown in FIGS. 1 and 2 for purposes ofillustration. A strap 84 is secured to the top of structure 34 at points82. Bolt 78 is inserted through strap 84 in order to lock scaffold 30into position against vertical surface 32. The weight of theconstruction workers standing on scaffold board 36 and of the cementload is distributed uniformly on bolts 78 and vertical surface 32.

It should be noted that, although FIG. 1 shows form boundaries 80 forthe pouring of cement to lay a sidewalk or similar flat structure,scaffold frames 30 may be utilized in supporting various types of formsfor constructing almost any type structure that is to be attached to avertical surface. There are various types of fasteners which may be usedto mount form supports 76 to which form 38 is attached. FIGS. 10 through14 show various embodiments of brackets, which may be built with angle,pipe, channel, or other materials, for mounting form support 76 and form38. A multiple angular bracket is shown in FIG. 11 mounted on upper tube50 and having a vertical leg 92 and an upper horizontal leg 94 forming acavity within which form support 76 is secured. An upper vertical leg 96extends from upper horizontal leg 94 in order to form the outerperimeter of either form 38 or boundary 80. FIG. 12 shows a bracket 98similar to bracket 90 in that it forms a cavity in which form support 76is secured; however, there is no upper vertical leg 96 since thisbracket is not located at the edge of the structure which is beingconstructed. It should be noted that form support 76 is bolted in thesame manner as illustrated in FIG. 8. Figures 13 and 14 show a topadjustment plate 100 having a slotted aperture .102 similar to that ofthe bottom adjustment plate 72 shown in FIG. 8. Beneath adjustment plate100 is a hollow rectangular cavity wherein form support 76 and any othersupporting structure may be inserted in an adjustable bolt mounting asdescribed in connection with FIG. 8.

FIG. 15 is a blown up view of seat plate 54 which-is secured againstvertical surface 32 for sharing the counterclockwise moment of force ofthe scaffold 30, the workers, and the cement load with bolt 78. Seatplate 54 has a cylinder extending perpendicular from a fiat surface sothat adjustment rod 52 may be inserted within the cylinder for affixingthe horizontal positioning of scaffold 30 and preventing unwantedmovement.

While the preferred embodiments of this invention have been illustratedand described, it will be understood by those skilled in the art thatmodifications and changes may be resorted to without departing from thespirit and scope of the invention.

We claim:

1. A scaffold for construction adjacent a vertical structure,comprising:

a plurality of scaffold frames,

a rigid securing element connected between each of said scaffold framesand the vertical structure for supporting each of said scaffold frames,

each of said scaffold frames comprising a base tube, a pair of uprightmembers extending from the base tube, and two horizontal membersconnected between the upper ends of the upright members, each of thehorizontal members being connected at opposite sides of the uprightmembers, forming a rectangular frame, and first means comprising anextension of the base tube beyond one of the upright members, a verticalfastener extending from the ends of said extension, a scaffold boardmounted between the last-mentioned upright member and said verticalfastener, a plurality of fasteners extending from the top of each ofsaid scaffold frames, and a form support mounted on the upper surfacesof the upper horizontal members and secured by means of said formfasteners for supporting a form which is to be utilized in constructinga structure vertically above and horizontally adjacent to said scaffoldboard where the workmen are standing during construction.

2. The scaffold of claim 1, including second means for horizontallyadjusting the distance between said scaffold board and said formsupport.

3. The scaffold of claim 2, wherein said second means includes a platesecured to the bottom surfaces of the upper horizontal members of saidrectangular frame and having a slotted aperture longitudinally alignedwith the horizontal space between the two upper horizontal memberslast-mentioned and includes a bolt inserted through the slotted apertureand fastened to said form support, said bolt being horizontally movablefrom one end of the slotted aperture to the other.

4. The scaffold of claim 2, wherein said second means includes anadjustment plate positioned above the upper horizontal members of saidrectangular frame and having a slotted aperture and including a boltinserted through the slotted aperture and fastened to said form supportbeneath said aperture plate, said bolt being slidably movable from oneend of the slotted aperture to the other.

5. The scaffold of claim 1, including third means for horizontallyadjusting the distance of the scaffold from the vertical surface towhich the structure being constructed is to be added.

6. The scaffold of claim 5, wherein said third means includes a seatplate secured to the vertical surface the scaffold is adjacent to, anadjustment rod mounted with one end thereof within and against said seatplate, said adjustment rod being mounted within the base tube of saidrectangular frame, and a nut at each end of the base tube threadedlyengaged with said adjustment rod.

7. The scaffold of claim 1, wherein said plurality of fasteners extendvertically from the outer sides of the upper horizontal members formounting and securing said form support between fasteners of saidplurality of fasteners.

8. The scaffold of claim 1, wherein said plurality of fasteners arebrackets extending vertically from the surface of one of the upperhorizontal members and having an upper horizontal leg for partiallycovering the top surface of said form support and holding said formsupport in position on the top surface of said horizontal members.

9. The scaffold of claim 8, wherein one of said brackets is positionedadjacent the outer end of each of said scaffold frames and has an uppervertical leg extending from the edge of said upper horizontal legdirectly above the outer end of each of said scaffold frames forming theouter perimeter of the form which is being supported by the formsupport.

References Cited UNITED STATES PATENTS 2,332,477 10/1943 Thornley 182-872,805,902 9/1957 Drasek 182-82 3,077,645 2/1963 Fleming 248-2353,318,414 5/1967 Meek 182-132 RElNALDO P. MACHADO, Primary Examiner U.S.Cl. X.R.

